baber/WOPTO huggingface dataset:
Patent GB-1329339-A (GB)
Title: Pressure sensitive films and methods of making same
IPC: B41M5/124
Filed: 1971-04-19
Abstract: 1329339 Solid or liquid containing-closed cell films PPG INDUSTRIES Inc 19 April 1971 [15 April 1970] 24306/71 Heading C3C [Also in Divisions B2 and D2] A porous non-opaque polymeric film comprises a polymer matrix containing a plurality of discrete closed cells having entrapped therein a liquid or solid which is a non-solvent for the polymeric material and wherein the material is substantially impermeable to the non-solvent. The film is converted into a partially opaque film by rupturing at least some of the cells and removing the entrapped non-solvent therefrom. The film is preferably formed on a substrate such as paper by applying to the substrate a composition of a gelable film forming polymer in a solvent mixture containing at least two miscible liquids wherein at least one is a non- solvent for the polymer and has a lower volatility than other liquids present in the mix, and volatilizing the liquid or liquids of higher volatility whereby a film is obtained containing a plurality of discrete closed cells having entrapped therein minute droplets of non-solvent. The volatilization may be accompanied by  cross-linking of the polymer. The composition may also be a latex and contain a liquid which has a higher boiling point than water. The compositions may also contain plasticizers, coalescers, dyes, pigments and thickeners. Exemplified polymers are polymethyl methacrylate, a copolymer of vinyl acetate and dibutyl maleate, a copolymer consisting of (by weight) 10% acrylamide, 2À5% methacrylic acid, 5% hydroxyethyl methacrylate, 20% acrylonitrile, 61À5% styrene and 1% butylene glycol dimethacrylate, a copolymer of methylmethacrylate, acrylamide, hydroxyethylmethacrylate, and methacrylic acid reacted with ethylenimine, and polyvinyl chloride. The non-solvent may be mineral spirits, high flash aromatic naphtha, naphthenic mineral oil, neat's foot oil, pine oil or cedar oil. The films and films coated on substrates, e.g. paper, may be used as original sheets of typewriter paper, in a manifold set, in photocopying devices and for forming designs.
Patent GB-741351-A (GB)
Title: An improved process for continuously depositing gelatine in or on travelling strip material
IPC: D21H25/06
Filed: 1950-10-05
Abstract: 741,351. Drying webs. DUNGLER, J. Oct. 5, 1950 [Oct. 10, 1949], No. 24369/50. Class 34(1). In a process of continuously depositing gelatine in or on travelling strip material 21, such as paper, which is impregnated with a solution of gelatine, the solvent is evaporated by high speed jets of a hot gaseous fluid such as superheated steam supplied through nozzles 4, 5 by blower boxes 2, 3 having fans 6, 7 and the nozzles being separated by discharge channels 4a, 5a, the operating conditions including temperature and discharge rate being so chosen that the solvent throughout the material is brought to its boiling point and evaporated while boiling. The drying chamber 1 is maintained substantially air free by replacing the air therein by superheated steam and the liquid evaporated, if water, may form part of the recirculated steam. The web passes through the chamber 1 between endless conveyers 32, 33.
Patent GB-205645-A (GB)
Title: Improvements in or relating to collapsible rims for the tyres of vehicle wheels
IPC: B60B25/02
Filed: 1922-09-09
Abstract: 205,645. Wood, A., and Abram, E. S. Sept. 9, 1922. Addition to 190,296. Tyre attachments to rims.-A spring-plate b is secured across the joint of the large segments a of a collapsable rim of the kind described in the main Specification; the meeting ends of the small segments being fitted with interlocking plates c, d. In modifications, the tongue and slot in the plates are of tee-formation; or the plate c may be fitted with a stud to engage an aperture in the other rim-segment.
Patent GB-786814-A (GB)
Title: Improvements in apparatus for measuring radiation intensity
IPC: G01T1/20
Filed: 1955-08-25
Abstract: 786,814. X-ray apparatus. AUERGES, AKT.-GES. Aug. 25, 1955 [Aug. 26, 1954; Feb. 9, 1955], No. 24456/55. Class 98(1) [Also in Group-XL(a)] Apparatus for measuring the intensity of a beam of radiation comprises a luminescent screen adapted to be excited by the radiation and disposed in the end of a tube fitting the observer's eye in light tight manner, the screen having an aperture through which can be seen a disc bearing a number of luminous comparison fields of different intensity and which can be rotated to match the illumination from the screen with that from one of the comparison fields. As shown the tube 2 is telescopic and is attached to a face mask 1 carrying a lens 6 by which the luminescent screen 8 may be observed. Rotatable on the tube 2 is a member 22 bearing a disc 16 through which the radiation to be measured can pass and which carries comparison fields 17 visible through an aperture 12 in the screen 8. The setting of the member 22 may be observed by the other eye of the observer by reflection in a mirror 26 hinged to the mask. Alternatively the mirror may be omitted and the scale read directly after the mask has been removed. In a modification the disc 16 is mounted on a shaft rotatable about the axis of the tube 2.
Patent GB-626483-A (GB)
Title: Silver base non-welding electrical contacts and methods of making the same
IPC: H01H1/02
Filed: 1946-08-16
Abstract: To reduce the initial contact resistance of a heat-sintered contact of silver and another material, an extremely thin coating of silver is chemically substituted for a portion of the other material.  A contact comprising silver and molybdenum powders is pressure-moulded and then immersed in an inclined rotating barrel containing a solution of AgCN and NH3 until the silver of the solution has replaced enough of the molybdenum to form a coating .001 inches thick.  The contact is then heat-sintered. Other suitable solutions comprise AgCl or AgPO4 and alkalis, e.g. Na2SO4 and NaOH or NaCN or NA2SO4 and NH3 or organic amines.  The second material may be tungsten or cadmium instead of molybdenum.
Patent GB-244221-A (GB)
Title: Improvements relating to pivoted sliding windows
IPC: E06B3/50
Filed: 1924-10-15
Abstract: 244,221. Spiers, A. D. Oct. 15, 1924. Pivoted - sliding windows; sash-cord attachments. - The upper and lower sashes 39, 40 of pivoted-sliding windows have rabbeted outer edges 35 for the reception of the sash cords and the parts of the beading forming the slideways are adapted to be moved to permit the sashes to be swung into horizontal position, where the lower ends of the sashes are prevented from lifting by means of catch devices. Each sash is swung after lowering and parts of the parting bead 45 and inner bead 46 are hinged at 20, 21, the bead 45 being adapted to be folded into a recess in the pulley stile. Each sash cord is attached to its sash by a suspender 28, Figs. 9 and 10, of which a hole 29 in the lower end engages a stud 30 on a bracket on the sash. The catch device for the lower sash consists of a spring 13, Fig. 2, arranged in a lower portion 11 of the parting bead 45 and adapted to engage a projection 26, Fig. 10, on the bracket of the lower sash. The catch device for the upper sash consists of a semicircular socket in a bracket 9 fixed in the pulley stile, the socket being engaged by a projection 24, Fig. 9, on the bracket of the upper sash. The upper sash is provided with a bracket 27, Fig. 9, where it contacts with the lower part of the parting bead. The cord of the lower sash is clasped in a hook part of a member 17, Fig. 1, fixed on the inner bead 46, and a movable part 19 serves as a fastener for the hinged bead 8. A stay 36 supports the lower sash in horizontal position. The pulley stiles of the lower sash are sunk beyond the level of the other stiles in order that the cords of the lower sash may remain vertical when that sash is swung to horizontal position.
Patent GB-517148-A (GB)
Title: Improvements in or relating to ore jigs
IPC: B03B5/14
Filed: 1938-08-20
Abstract: 517,148. Jig-washers. LE TALL, F. W. (Whittaker, J. S.). Aug. 20, 1938,.No. 24585. [Class 82 (ii)] A jig comprises one or more units each having two jig compartments side by side, and having mainly thereunder a further compartment containing a reciprocable obturator by which upward impulses are imparted to the liquid in the two jig compartments alternately. The washer shown comprises a plurality of compartments 1, 2, 3 in series, each compartment being divided into two cells 4, 5 separated by a passage 13 closed at the bottom by a plate. Each cell has a removable grid 15 on which is supported a screen 16 on which are bars 17, the spaces between which are filled with ragging. The screens in the compartments 1, 2, 3 may be inclined so that they form a continuous slope, or they may be horizontal and stepped as shown. The material is fed over weirs 18 on to the screens in the compartment 1 and weirs 19 are provided between the successive compartments. The lower parts of the cells 4, 5 are formed into hoppers by the walls 8, 9 and between and below the walls 9 is a compartment 20 in which works an obturator 21 which may be a piston or a diaphragm. If a piston is used it may fit loosely so that there is some communication between the two sides or it may fit tightly to seal the passage, for example, by connecting it to the walls of the compartment by a flexible diaphragm. The piston is carried by a rod 22 which passes with some clearance through an aperture in the plate at the bottom of the space 13 and is reciprocated by an eccentric, crank &c. 23 on a shaft 24, the shaft 24 being preferably common to the pistons of all the compartments. The piston is preferably hollow and of a buoyancy sufficient to balance its weight and that of the connecting rod and the edges 43, Fig. 4, which take the side thrust of the eccentric may be provided with replaceable wearing strips comprising angle irons 40, the other edges being protected by rounded strips secured to the side walls of the piston. The portion of the compartment 20 above the piston communicates directly with the cell 4 and the portion below the piston communicates with the cell 5 through a passage 26 in the compartment and a passage between the wall 9 and a plate 27, so that pulsion is produced in one cell at the same time as suction in the other. Baffles 28 are provided to prevent the material which passes through the screens from entering the compartment 20 and to direct the flow of the water. Water may be admitted to the compartment 20 by supply pipes 33, 34 which may have non- return valves. The values pass through the screens and are withdrawn, preferably continuously, at outlets 28a. The compartment 20 is provided with a valved discharge 32, or, if a tight-fitting piston or diaphragm is used, a discharge may be provided on each side of the obturator. Air-vents 37 are provided in the passage 13.
Patent GB-320191-A (GB)
Title: Process for breaking a foam into liquid particles and vapours and gases
IPC: B27K3/10
Filed: 1928-08-27
Abstract: 320,191. Harkom, J. F. Aug. 27, 1928. Density separators.-Vapours and gases are separated from the liquid particles forming foam in a vessel, by the foam rising into the path of a revolving member so that the liquid particles are cast away by centrifugal force, while the gases and vapours pass through the member to a discharge outlet. The device may be employed in the process of creosoting wood by " boiling under vacuum," or in dehydrating tar and the like. A vessel 10 may be used for the creosote process, the mixture being admitted by the pipe 12. A hollow shaft 15. Fig. 1, carries a rotor consisting of two spaced plates 17 with straight or curved vanes 18 between them. Openings 21 in the shaft communicates with the central space 20 in the rotor, and apertures 24 near the upper end of the shaft open into a recess 25 in communication with the discharge pipe 13. A foam forms in the vessel 10 the suction on the pipe 13 draws the foam into the rotor. The liquid particles thrown outwards' to the wall of the vessel while the gaseous part passes through the shaft to the pipe 13. In the modification shown in Fig. 3, the shaft 15a is solid and the rotor has vanes 18<a> between which the gases pass in an axial direction to the discharge pipe 13<a>. The separating device mav form a separate unit connected to the vessel 10 by pipes.
Patent GB-1462507-A (GB)
Title: Radiation analyzer
IPC: G01T1/36
Filed: 1974-06-04
Abstract: 1462507 Radiation detection apparatus TEXAS NUCLEAR CORP 4 June 1974 [4 June 1973] 24621/74 Heading G1A In radiation detection apparatus which utilizes a plurality of scintillators coupled to a single detector, separation of detected events corresponding to the respective scintillators is effected by insertion of a filter, uniformly attenuating by at least 10%, in between one of the scintillators and the detector, and use of respective signal analyzers to process the signals which appear in two pulse amplitude ranges corresponding to events in the respective scintillators. The invention is of particular use in fluorescence analysis when balanced filters are being used to investigate emission from one particular element in a sample. As shown in Fig. 1, a primary source 11', shielded from the scintillators 17, 18 by 16', causes a sample to fluoresce. The fluorescent radiation passes to scintillator 17 via filter 19 which absorbs the fluorescent radiation from element of interest, and to scintillator 18 via filter 20 which readily absorbs it. The uniformly attenuating filter is provided at 21, but may be between scintillator 18 and the detector. The amplitude ranges of analyzers 24, 25 are illustrated in Fig. 2 (not shown) and the difference in the area under the peaks is representative of the fluorescence of the element of interest. Pulses are gated via 87, 88, to scalers 89, 90, a factor gate 92, 0À8 # 1À0, compensating for imbalance in filters 19, 20. After a pre-set time, the scalers are fed by clock 94 until 89 overflows when scaler 90 will contain the difference between timed counts, representing the concentration of the element of interest, this being indicated at 93.  The balanced filter and scintillator system may comprise a plurality of scintillators in a circular array with alternate filters 19, 20 associated therewith, Figs. 2 and 3 (not shown). Blanks are provided for geometrical consistency to match the volume of filters 21. In an arrangement suitable for determination of the lead content of paint, the apparatus is mounted on a pistol grip. The source comprises a cobalt 57 x-ray source and is uncovered by pressing the pistol trigger which operates a cam linkage. The filters 19, 20 are of rhenium and iridium to provide discrimination for the K peak of lead. Other filters usable may be tungsten and platinum or tantalum and gold. The transmission of filter 21 is at least 10% but preferably at least 50%. The count obtained on an unknown sample is evaluated by comparison with that in a known sample. In a further embodiment useful in the investi-  gation of source materials, two levels of attenuation e.g. 40% and 70% are provided by two filters, 21 and 121, Fig. 6, three analyzers being provided. Balanced filters are not necessary and the source scintillator combinations are separated from one another by shields. The unattenuated sourcescintillator arrangement provides a reference against which two unknown sources can be evaluated. Alternatively, three unknown sources may be concurrently analyzed and compared against known standards.
Patent GB-702705-A (GB)
Title: Improvements in capping heads for bottle capping machines
IPC: B67B3/14
Filed: 1951-10-22
Abstract: 702,705. Capsuling bottles. OLD, G., and CHAINEY, V. D. Oct. 21, 1952 [Oct. 22, 1951], No. 24649/51. Class 125 (2) A capping head for milk and like bottles comprises an outer cupshaped housing 4 which is lowered on to the bottle and has a tapered internal surface 8 cooperating during the lowering with the tapered fingers 14 of a cap closing member 13 which cause a rubber or like ring 16 to contract the cap about the bottle neck, the cap being initially held in the head by suction applied through passages 11, 9 to the face of a cap holding member 6 which carries the member 13 and has a tapered periphery 7 corresponding to the tapered surface 8. The members 6, 13 are loaded by a spring 12. The head may be used with the machine described in Specification 702,704.
Patent GB-818171-A (GB)
Title: Improvements relating to automatic machine tools and other apparatus for shaping workpieces
Inventor: CAIL ROLAND ALLAN
IPC: G05B19/4105
Filed: 1954-08-25
Abstract: 818,171. Milling. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 12, 1955 [Aug. 25, 1954], No. 29677/54. Class 83 (3). [Also in Group XXXVIII] In a milling-machine controlled electrically by a punched-record (see Group XXXVIII), a workpiece is rotated and moved axially past a pair of radially-fed cutters 15, 29 which follow spaced-paths.
Patent GB-409565-A (GB)
Title: Improvements in and relating to valve controlled electric motors
IPC: H02P25/24
Filed: 1933-09-06
Abstract: 409,565. Motors. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Sept. 6, 1933, No. 24725. Convention date, Sept. 6, 1932. [Class 35.] Machines with vapour or like rectifiers in place of commutators.-The stator winding of a repulsion motor consists of a number of star connected windings, the mid point being connected to the cathode of a grid-controlled gas or vapour discharge vessel and the end points to the anodes. Fig. 1 shows such an arrangement with three windings 1-4, 2-5 and 3-6 the mid point o being connected to the cathode k of a discharge-vessel g and the ends 1-6 to the anodes a<1>-a<6> respectively. A choke coil may be inserted between the point o and the cathode k and a compensating winding may be placed on the rotor. Reference has been directed by the Comptroller to Specifications 367,894 and 385,249.
Patent GB-294016-A (GB)
Title: Improvements in or relating to internal expanding brakes
IPC: F16D51/04
Filed: 1927-09-20
Abstract: 294,016. Vollmer, J. Sept. 20, 1927. Band; compensating for wear.-An internal band brake comprises a band 5 guided in both directions of rotation of the brake drum by stops which are automatically adjustable for the wear of the brake lining and the expanding member 13 is slidably mounted in a rotary body 12 and cooperates with the ends of the band which are curved eccentrically to the axial centre of the rack shaft on which the body 12 is mounted. The bearing 4 for the rotary body 12 serves as an abutment for one end of the band. The, stops comprise a loop 18 connected to the brake band and adapted to guide a bolt 7 carried by a trailing bolt 6 frictionally held by wedge-shaped, spring-pressed friction blocks 8 mounted on the brake anchorplate. The height of the loop 18 is such as to permit a certain movement of the brake band which if exceeded causes the bolts 6 to be moved against the friction force retaining them. The loops 18 may be mounted on the bolts 6 and the bolts 7 on the brake band. The ends of the expanding member 13 are provided with rollers which roll on curves 17 on the brake. band. For a front axle a ball joint is provided in the brake-actuating shaft in the centre line of the steering pivot.
Patent GB-361911-A (GB)
Title: Improvements in and relating to the mounting of radiators and associated parts for heating buildings
IPC: F24D3/14
Filed: 1930-08-19
Abstract: 361,911. Radiators for heating buildings. AUSTEN, F. H., 66, Carisbrooke Rond, Leicester. Aug. 19, 1930, No. 24827. [Class 64 (ii).] Radiator units of the kind described in Specification 297,043, [Class 64 (ii), Heating systems &c.], are mounted in a preformed frame structure arranged in or adjacent to a wall, partition or ceiling so as to form a boundary for the plaster or other surface finish. The frame may comprise four angle members 1 having brackets 2 to enable the frame to be fixed in a wall recess. Horizontal cross members 3, 4 may also be provided to receive the radiator unit 5. The members 4, 1 are spaced to correspond to the height of the skirting board 7. The radiator is secured by bolts 8 with interposed helical springs 9, the front face of the radiator being recessed to receive the bolt heads 10. The spaces between the members 3, 4, 1 may be filled in by wood blocks 11, 12, and another block 13 may make up the space to the window board 14. A veneer sheet 15 is applied to the front of the radiator and its edges covered by beading 16 and the skirting 7. The edge of the wall plaster is covered by the beading 16. In a modification, Fig. 3 (hot shown), the frame members are of channel section, and the skirting and window boards are perforated to allow air to circulate around the back of the radiator. In another modification, Fig. 5, the frame members 1, 3, 4 are disposed with their sides outward, and the radiator 5 is secured by bolts 8. The skirting and window boards are of metal, with concealed openings 23, 24 for air circulation. If the frame is of greater length than the heating unit, the spaces are filled with dummy plates. The beading 16 may be omitted and the plaster brought up to the edge of the frame. In another modification, Fig. 9, the side members of the frame 30 are continued upward by members 31, 32, and a window frame 34 is attached thereto. The window frame may be smaller than the frame 31, 32, 33, the intervening space being utilized to accommodate the pipe connections. The window and radiator frames may lie in one plane. The radiator frame may be flush with or projecting from the plane of a wall.
Patent GB-1306475-A (GB)
Title: Turbine construction
IPC: F01D5/08
Filed: 1971-04-19
Abstract: 1306475 Cooling gas turbines UNITED AIRCRAFT CORP 19 April 1971 [15 June 1970] 24820/71 Heading F1G An annular chamber 82 in a turbine housing receives cooling fluid from a supply 92 and hot gas from the annular passage 6 upstream of the rotor blades 18 and the mixture of cooling fluid and hot gas flows from the chamber to the chambers 4, 15, 71, 73 and 77 through passages between the stator and rotor, between the blade roots and the root recesses and openings 11 in the rotor. The coolant supply pressure to the chamber 82 is less than the pressure in the passage 6 between the member 60 and the blade platforms 38 and the spacing between the chamber defining member 80 and the platforms is set to provide a disired flow into the passage 6 across the knife edge seals 70, 74, 76. A second chamber receiving coolant and hot gas may be associated with the second stage rotor disc 10.
Patent GB-518413-A (GB)
Title: Improvements in or relating to means for obtaining metals or compounds thereof from metal bearing ores
IPC: B01D11/02
Filed: 1938-08-24
Abstract: 518,413. Treating solids with liquids; extracting metals. BURNETT, J. L. Aug. 24, 1938, No. 24864. [Class 82 (i)] In apparatus for extracting metals, or compounds thereof, from their ores, acid passes by gravity from a storage tank 5 to the underside of a porous stone false bottom 13 supporting the ore in a leaching tank 9, in which it passes upwardly through the ore charge, and thence in succession to a solution tank 20, a precipitating tank 27 in which it passes downwardly and the precipitate is deposited on a porous stone false bottom 29, and finally to an acid storage tank 36 from which it is returned by a pump 38 to the tank 5. In the apparatus shown duplicate leaching and precipitation tanks 10, 28 are provided, together with connections allowing them to be used together with, or, alternatively to, the tanks 9, 27 respectively. For extracting gold and silver nitric and hydrochloric acids, bromine and chlorine may be employed, and for copper sulphurous acid, bicarbonate of soda being used in each case for precipitation.